
INPUT |4 11| D3
EVEN |5 10| D2
ODD |6 9| D1
GND |7 8| D0
+---------+
The logical schematic for added parity generation
74HC280 SCSI-bus
+--------+ +-------+
| P8 | D0------------D0 | P2 |
| P9 | D1------------D1 | P4 |
| P10 | D2------------D2 | P6 |
| P11 | D3------------D3 | P8 |
| P12 | D4------------D4 | P10 |
| P13 | D5------------D5 | P12 |
| P1 | D6------------D6 | P14 |
| P2 | D7------------D7 | P16 |
| P6 | ODD------ PARITY | P18 |
| | +-------+
| P14 | +5V
| |
| P3 | NO CONNECTION
| P5 | NO CONNECTION
| |
| P4 | INPUT--+
| P7 | GND----|
+--------+ |
GND
copyright (c)1996 Martin Graiter. Non-commercial use granted to all Atarians of
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